OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:ba:bf:8c:01:59:f6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:ba:02:09:97:6c:99
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:5a:7b:0e:57:23:d7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:71:a6:43
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:71:a6:43
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
